Again, the plant appears and flowers normally, but the flowers drop off without making tomatoes. Blossom drop comes from temperature fluctuations.Īnother frustrating tomato plant problem is blossom drop. To confirm that your plants are receiving adequate moisture, stick your finger into the soil about 3 inches deep-it should feel moist, like wet laundry before you put it in the dryer. Container plants dry out more quickly and need more frequent watering than in-ground tomato plants. The combined rainfall and irrigation to your garden should equal an inch or slightly more per week. To prevent blossom end rot, use a rain gauge to monitor how much water your garden is getting. The real culprit almost always turns out to be a lack of soil moisture for plants to metabolize the nutrients that are present in the soil. It is rare that soil actually lacks calcium. Suddenly, especially in hot weather, single round black patches appear on the very bottom of young green tomatoes, from where the flower blossoms have detached.īlossom end rot ultimately occurs from a lack of available calcium, but the solution is not as simple as adding lime or some other supplement. The plant might look healthy, flower normally, and begin to develop tomatoes. Photo: Blossom end rot might suggest a lack of calcium.Ī common tomato plant problem is blossom end rot, the Michigan State University Extension offices reports.
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